<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="商品种类名称" prop="type">
        <el-input v-model="queryParams.type" placeholder="请输入商品种类名称" clearable @keyup.enter.native="handleQuery" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd"
          v-hasPermi="['shopping:commodityCategory:add']">新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="info" plain icon="el-icon-sort" size="mini" @click="toggleExpandAll">展开/折叠</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-if="refreshTable" v-loading="loading" :data="commodityCategoryList" row-key="id"
      :default-expand-all="isExpandAll" :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
      <el-table-column label="种类所属父类ID" prop="allCategoriesId" />
      <el-table-column label="ID" align="center" prop="id" width="130"/>
      <el-table-column label="商品种类名称" align="center" prop="type" />
       <el-table-column label="种类图片" align="center" prop="image" width="100">
        <template slot-scope="scope">
          <image-preview :src="scope.row.image" :width="50" :height="50" />
        </template>
      </el-table-column>
      <el-table-column label="显示顺序" align="center" prop="displayOrder" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)"
            v-hasPermi="['shopping:commodityCategory:edit']">修改</el-button>
          <el-button size="mini" type="text" icon="el-icon-plus" @click="handleAdd(scope.row)"
            v-hasPermi="['shopping:commodityCategory:add']">新增</el-button>
          <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)"
            v-hasPermi="['shopping:commodityCategory:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改商品种类管理对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="种类所属父类ID" prop="allCategoriesId">
          <treeselect v-model="form.allCategoriesId" :options="commodityCategoryOptions" :normalizer="normalizer"
            placeholder="请选择种类所属父类ID" />
        </el-form-item>
        <el-form-item label="商品种类名称" prop="type">
          <el-input v-model="form.type" placeholder="请输入商品种类名称" />
        </el-form-item>
        <!-- <el-form-item label="种类图片" prop="image">
          <image-upload v-model="form.image"/>
        </el-form-item> -->
        <el-form-item v-if="showImageUpload" label="种类图片" prop="image">
          <image-upload v-model="form.image" />
        </el-form-item>
        <el-form-item label="显示顺序" prop="displayOrder">
          <el-input v-model="form.displayOrder" placeholder="请输入显示顺序" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  import {
    listCommodityCategory,
    getCommodityCategory,
    delCommodityCategory,
    addCommodityCategory,
    updateCommodityCategory
  } from "@/api/shopping/commodityCategory";
  import Treeselect from "@riophae/vue-treeselect";
  import "@riophae/vue-treeselect/dist/vue-treeselect.css";

  export default {
    name: "CommodityCategory",
    components: {
      Treeselect
    },
    data() {
      return {
        // 遮罩层
        loading: true,
        // 显示搜索条件
        showSearch: true,
        // 商品种类管理表格数据
        commodityCategoryList: [],
        // 商品种类管理树选项
        commodityCategoryOptions: [],
        // 弹出层标题
        title: "",
        // 是否显示弹出层
        open: false,
        // 是否展开，默认全部展开
        isExpandAll: true,
        // 重新渲染表格状态
        refreshTable: true,
        // 查询参数
        queryParams: {
          type: null,
        },
        // 表单参数
        form: {},
        // 表单校验
        rules: {
          allCategoriesId: [{
            required: true,
            message: "种类所属父类ID不能为空",
            trigger: "blur"
          }],
          type: [{
            required: true,
            message: "商品种类名称不能为空",
            trigger: "blur"
          }],
        }
      };
    },

    computed: {
      showImageUpload() {
        // 判断父类ID是否为空或满足显示条件
        return this.form.allCategoriesId
      }
    },
    created() {
      this.getList();
    },

    methods: {
      // isParent(row) {
      //   // 判断是否为父类ID的逻辑
      //   return !row.allCategoriesId; // 根据实际情况调整条件
      // },
      /** 查询商品种类管理列表 */
      getList() {
        this.loading = true;
        listCommodityCategory(this.queryParams).then(response => {
          this.commodityCategoryList = this.handleTree(response.data, "id", "allCategoriesId");
          this.loading = false;
        });
      },
      /** 转换商品种类管理数据结构 */
      normalizer(node) {
        if (node.children && !node.children.length) {
          delete node.children;
        }
        return {
          id: node.id,
          label: node.type,
          children: node.children
        };
      },
      /** 查询商品种类管理下拉树结构 */
      getTreeselect() {
        listCommodityCategory().then(response => {
          this.commodityCategoryOptions = [];
          const data = {
            id: 0,
            type: '顶级节点',
            children: []
          };
          data.children = this.handleTree(response.data, "id", "allCategoriesId");
          this.commodityCategoryOptions.push(data);
        });
      },
      // 取消按钮
      cancel() {
        this.open = false;
        this.reset();
      },
      // 表单重置
      reset() {
        this.form = {
          id: null,
          allCategoriesId: null,
          type: null,
          image: null,
          displayOrder: null,
          del: 0
        };
        this.resetForm("form");
      },
      /** 搜索按钮操作 */
      handleQuery() {
        this.getList();
      },
      /** 重置按钮操作 */
      resetQuery() {
        this.resetForm("queryForm");
        this.handleQuery();
      },
      /** 新增按钮操作 */
      handleAdd(row) {
        this.reset();
        this.getTreeselect();
        if (row != null && row.id) {
          this.form.allCategoriesId = row.id;
        } else {
          this.form.allCategoriesId = 0;
        }
        this.open = true;
        this.title = "添加商品种类管理";
      },
      /** 展开/折叠操作 */
      toggleExpandAll() {
        this.refreshTable = false;
        this.isExpandAll = !this.isExpandAll;
        this.$nextTick(() => {
          this.refreshTable = true;
        });
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
        this.reset();
        this.getTreeselect();
        if (row != null) {
          this.form.allCategoriesId = row.allCategoriesId;
        }
        getCommodityCategory(row.id).then(response => {
          this.form = response.data;
          this.open = true;
          this.title = "修改商品种类管理";
        });
      },
      /** 提交按钮 */
      submitForm() {
        this.$refs["form"].validate(valid => {
          if (valid) {
            if (this.form.id != null) {
              updateCommodityCategory(this.form).then(response => {
                this.$modal.msgSuccess("修改成功");
                this.open = false;
                this.getList();
              });
            } else {
              addCommodityCategory(this.form).then(response => {
                this.$modal.msgSuccess("新增成功");
                this.open = false;
                this.getList();
              });
            }
          }
        });
      },
      /** 删除按钮操作 */
      handleDelete(row) {
        this.$modal.confirm('是否确认删除商品种类管理编号为"' + row.id + '"的数据项？').then(function() {
          return delCommodityCategory(row.id);
        }).then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        }).catch(() => {});
      }
    }
  };
</script>
